(19)
(11) EP 1 685 092 A2

(12)

(88) Date of publication A3:
02.06.2005

(43) Date of publication:
02.08.2006 Bulletin 2006/31

(21) Application number: 04773427.2

(22) Date of filing: 17.09.2004
(51) International Patent Classification (IPC): 
C07C 227/06(2006.01)
C07C 229/08(2006.01)
 C07C 227/32(2006.01)
C07D 333/22(2006.01)
(86) International application number:
PCT/JP2004/014048
(87) International publication number:
WO 2005/028419 (31.03.2005 Gazette 2005/13)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

(30) Priority: 18.09.2003 JP 2003326939

(71) Applicant: Takasago International Corporation
Tokyo 144-8721 (JP)

(72) Inventors:
  • MATSUMURA, Kazuhiko, c/o Takasago Int. Corp.
    Hiratsuka-shi, Kanagawa 2540073 (JP)
  • SAITO, Takao, c/o Takasago Int. Corp.
    Hiratsuka-shi, Kanagawa 2540073 (JP)

(74) Representative: Teipel, Stephan et al
Lederer & Keller Patentanwälte Prinzregentenstrasse 16
80538 München
80538 München (DE)

   


(54) ASYMMETRIC REDUCTIVE AMINATION OF KETO ACID DERIVATIVES FOR PRODUCING AMINO ACID DERIVATIVES